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From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Closed: (ABDERA-154) Logging messages in shuffling code is excessive yet short of critical information
Date Thu, 01 May 2008 01:32:55 GMT

     [ https://issues.apache.org/jira/browse/ABDERA-154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Runping Qi closed ABDERA-154.
-----------------------------

    Resolution: Fixed

wrong project.
Sorry.


> Logging messages in shuffling code is excessive yet short of critical information
> ---------------------------------------------------------------------------------
>
>                 Key: ABDERA-154
>                 URL: https://issues.apache.org/jira/browse/ABDERA-154
>             Project: Abdera
>          Issue Type: Improvement
>            Reporter: Runping Qi
>
> Below is an excerpt from the log file of a reducer.
> A same set of of messages about fetching schedule is logged every second.
> Yet, the critical information --- which hosts were slow --- was not there.
>  
> 2008-05-01 00:33:13,215 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Need another 3 map output(s) where 1 is already in progress
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0:
Got 0 new map-outputs & 0 obsolete map-outputs from tasktracker and 0 map-outputs from
previous failures
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Got 2 known map output location(s); scheduling...
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Scheduled 0 of 2 known outputs (2 slow hosts and 0 dup hosts)
> 2008-05-01 00:33:14,216 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Need another 3 map output(s) where 1 is already in progress
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0:
Got 0 new map-outputs & 0 obsolete map-outputs from tasktracker and 0 map-outputs from
previous failures
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Got 2 known map output location(s); scheduling...
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Scheduled 0 of 2 known outputs (2 slow hosts and 0 dup hosts)
> 2008-05-01 00:33:15,217 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0
Need another 3 map output(s) where 1 is already in progress
> 2008-05-01 00:33:16,218 INFO org.apache.hadoop.mapred.ReduceTask: task_200804302255_0002_r_000720_0:
Got 0 new map-outputs & 0 obsolete map-outputs from tasktracker and 0 map-outputs from
previous failures

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